CN106927654A - A kind of paper mill sludge resource utilization system and its method - Google Patents
A kind of paper mill sludge resource utilization system and its method Download PDFInfo
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- CN106927654A CN106927654A CN201511008115.6A CN201511008115A CN106927654A CN 106927654 A CN106927654 A CN 106927654A CN 201511008115 A CN201511008115 A CN 201511008115A CN 106927654 A CN106927654 A CN 106927654A
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- 239000010802 sludge Substances 0.000 title claims abstract description 216
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000002156 mixing Methods 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 20
- 239000010865 sewage Substances 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 15
- 238000004537 pulping Methods 0.000 claims abstract description 10
- 238000007731 hot pressing Methods 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 15
- 208000005156 Dehydration Diseases 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 230000018044 dehydration Effects 0.000 claims description 13
- 238000006297 dehydration reaction Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 5
- 241000219146 Gossypium Species 0.000 claims description 5
- 238000005189 flocculation Methods 0.000 claims description 5
- 230000016615 flocculation Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 abstract 1
- 230000002262 irrigation Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000008187 granular material Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
Abstract
The invention discloses a kind of paper mill sludge resource utilization system and its method, its drip irrigation device is the preliminary sedimentation tank that it includes for Sewage, for the storage pool to the paper mill sludge storage after precipitation, for the pulping device mixed with other raw materials to paper mill sludge, for the paper mill sludge after to blending store the mixing pit of mixing, the sludge plate forming device of product is formed for carrying out treatment to mixed paper mill sludge, and squeeze drying device for carrying out the sludge plate of hot-pressing drying to the sludge plate being molded, the feed end of the sludge plate forming device is provided with head tank, set between mixing pit and head tank and carry material device, material device is carried by mixed paper mill sludge lifting in mixing pit to head tank.A kind of paper mill sludge resource utilization system of the invention and its method being capable of secondary utilization paper mill sludges, it is to avoid harm of the paper mill sludge on environment influences.
Description
Technical field
The present invention relates to a kind of paper technology, in particular, it is related to a kind of paper mill sludge resource utilization system and its method.
Background technology
In various paper pulp and paper manufacturing process, due to production technology problem, substantial amounts of solid waste can be all formed --- paper mill sludge, the dissolved matter for also having all kinds of chemicals in paper mill sludge containing fiber fines, by after the sewage disposal system heavy treatment of addition flocculant thing, generating paper mill sludge.
Paper mill sludge is a kind of discarded object for product, it is impossible to be back to product manufacturing, and then general processing method is：A, landfill.Paper mill sludge landfill be a kind of commonplace processing mode, be exactly by paper mill sludge by further dehydration to mass dryness fraction be 10%-15% when, sludge is transported to deserted mountain wild country and is filled, the method will cause the pollution of natural soils environment；B, burning.Due to containing string and part papermaking chemical product in paper mill sludge, it has the calorific value of about 2000 kilocalories, therefore burning disposal can be carried out, but paper mill sludge is before burning, have to pass through further by squeezing or heated-air drying, when sludge mass dryness fraction is brought up into more than 45%, can just mix do fuel in coal or need other fuel to help sludge to be burned, recovery section heat energy.C, making organic fertilizer.The method be sludge is fermented, drying and processing, and need the mineral matter that can do agricultural fertilizer with other just can be as fertilizer after mixing in proportion, and quality stability is poor.D, carry out recycling.Paper mill sludge is exactly fabricated to sludge plate or three-dimensional layered product, as packaging vibration-damping, ornament materials etc., so as to realize the recycling of paper mill sludge, can effectively be prevented because of landfill, be burned the environmental problems such as the soil, the air pollution that bring.
The content of the invention
In view of the shortcomings of the prior art, being capable of secondary utilization paper mill sludge it is an object of the invention to provide one kind, it is to avoid paper mill sludge resource utilization system and its method of the paper mill sludge on the harm influence of environment.
To achieve the above object, the invention provides following technical scheme：A kind of paper mill sludge resource utilization system, it includes the preliminary sedimentation tank for Sewage, for the storage pool to the paper mill sludge storage after precipitation, for the pulping device mixed with other raw materials to paper mill sludge, for the paper mill sludge after to blending store the mixing pit of mixing, the sludge plate forming device of product is formed for carrying out treatment to mixed paper mill sludge, and squeeze drying device for carrying out the sludge plate of hot-pressing drying to the sludge plate being molded, the feed end of the sludge plate forming device is provided with head tank, set between mixing pit and head tank and carry material device, material device is carried by mixed paper mill sludge lifting in mixing pit to head tank.
The present invention is further arranged to：The pulping device is centrifugal rotor drum.
The present invention is further arranged to：Sewage backflow system is communicated between the sludge plate forming device and preliminary sedimentation tank.
The present invention is further arranged to：The sludge plate forming device includes couch roll, conveyer, vaccum dewatering box, pressure roller, the couch roll is located near the side of head tank, conveyer is used to convey the paper mill sludge on couch roll, vaccum dewatering box is located at couch roll lower section for carrying out first dewater treatment to paper mill sludge, and vaccum dewatering box connects sewage backflow system, pressure roller carries out second dehydration to the paper mill sludge on conveyer.
The present invention is further arranged to：The surface of the pressure roller sets fluted in the axial direction, and flexible cutting line is set in the groove.
The present invention is further arranged to：Conveyer belt on the conveyer is the absorption band for adsorbing paper mill sludge.
The present invention is further arranged to：The sludge plate squeezing drying device includes the body being vertically arranged, the heater being arranged in body and the hydraulic cylinder being arranged on the downside of heater, the heater includes top board and base plate and the clad steel silk screen being arranged between top board and base plate, it is used to place the sludge plate after shaping between clad steel silk screen, top board is used to heat with base plate.
The present invention is further arranged to：Set in coil pass in the top board and steel plate, high-temperature steam is passed through in coil pass.
The present invention is further arranged to：Multiple heaters being stacked with are provided with the body.
Present invention tool has the advantage that：By preliminary sedimentation tank,Storage pool,Pulping device,Mixing pit,Cooperation between sludge plate forming device and sludge plate squeezing drying device,Make it possible to carry out recycling to paper mill sludge,Avoid secondary pollution of the paper mill sludge to environment,And the level of resources utilization can be improved,Avoid causing the wasting of resources,Make it possible to carry out first dewater treatment to paper mill sludge by setting vaccum dewatering box,By setting pressure roller second dehydration treatment can be carried out to paper mill sludge,Make it possible to that paper mill sludge is further dried,By setting sewage backflow system,Make it possible to be collected the sewage after dehydration and be back to preliminary sedimentation tank,So that the paper mill sludge remained after dehydration carries out flocculation sediment and is recycled again,By setting elastic cutting line,Make it possible to facilitate sludge plate of the workman to producing to cut off,So that improve work task efficiency,Make it possible to repeatedly be laminated paper mill sludge by the setting for adsorbing band,So that sludge plate reaches predetermined thickness,The treatment of drying device is squeezed by sludge plate,The drying efficiency of sludge plate can be improved,And it is capable of the hardness and toughness of further sludge plate by squeezing,Moisture of the sludge plate in drying process can be improved by the setting of clad steel silk screen to distribute,By top board and base plate for coil pipe is set,Make it possible to be heated by steam and can effectively improved the thermally equivalent efficiency of top board and base plate.
The present invention is further arranged to：It is a kind ofPaper mill sludge resource utilization method, the paper mill sludge utilizes bag following steps：
1）Preliminary sedimentation tank is passed through to papermaking wastewater carries out flocculation sediment and separate to form paper mill sludge；
2）Post-depositional paper mill sludge is pumped into storage pool by transmitting pump carries out storage utilization；
3）Blend the paper mill sludge in storage pool by centrifugal rotor drum, and be put into chemical fibre lower margin cottons in centrifugal rotor drum simultaneously carries out being mixed to form sludge material with paper mill sludge；
4）Mixed sludge material is stored in mixing pit, the lifting of sludge material is put into head tank by carrying material device then；
5）Sludge material in head tank is transferred on conveyer by couch roll, and the absorption band absorption sludge material on conveyer simultaneously carries out dewater treatment by vaccum dewatering box, and the conveyer then with sludge material carries out second dehydration treatment by pressure roller and to sludge material；
6）The sludge bed of material is stacked to by certain thickness by suction-operated in rotation process by the absorption band of conveyer and forms sludge plate, cutoff process is carried out to sludge plate by the elastic cutting line on pressure roller；
7）Sludge plate after shaping is placed between clad steel silk screen, and high-temperature steam is passed through between top board and base plate, and by hydraulic cylinder sludge plate squeezed simultaneously so that the moisture that sludge board memory is stayed carries out further evaporation process；
8）When the mass dryness fraction in sludge plate reaches 85%-90%, sludge plate is taken out, press then is carried out to dried sludge plate and rolls treatment；
9）Sludge plate after to rolling carries out the cutting of specification, forms last product.
Present invention tool has the advantage that：By using chemical fibre lower margin cottons, the charge effect on chemical fibre surface can be utilized, by sludge absorption on chemical fibre surface, so as to be that scattered mud granule gathers shaping, simultaneously because chemical fibre is compared has certain length with mud granule, sludge plate forming can be made has preferable toughness and folding strength after drying, simultaneously because containing chemical components such as thermoplasticity PAE resin, water repellent agents in the pulp-water of paper mill sludge, therefore sludge plate assigns the preferable intensity of sludge plate and water resistance by rich after hot pressing, drying.
Brief description of the drawings
Fig. 1 is the system architecture diagram of a kind of paper mill sludge resource utilization system of the invention and its method；
Fig. 2 is the structural representation of the sludge plate forming device of a kind of paper mill sludge resource utilization system of the invention and its method；
Fig. 3 is the roller structure schematic diagram of the sludge plate forming device of a kind of paper mill sludge resource utilization system of the invention and its method；
Fig. 4 is the structural representation of the sludge plate squeezing drying device of a kind of paper mill sludge resource utilization system of the invention and its method.
In figure：1st, preliminary sedimentation tank；2nd, storage pool；3rd, pulping device；4th, mixing pit；5th, sludge plate forming device；6th, sludge plate squeezing drying device；7th, head tank；8th, sewage backflow system；9th, couch roll；10th, conveyer；11st, vaccum dewatering box；12nd, pressure roller；13rd, groove；14th, elastic cutting line；15th, body；16th, heater；17th, hydraulic cylinder；18th, top board；19th, base plate；20th, clad steel silk screen.
Specific embodiment
Referring to figs. 1 to shown in 4, a kind of paper mill sludge resource utilization system of the present embodiment, it includes the preliminary sedimentation tank 1 for Sewage, for the storage pool 2 to the paper mill sludge storage after precipitation, for the pulping device 3 mixed with other raw materials to paper mill sludge, for the paper mill sludge after to blending store the mixing pit 4 of mixing, the sludge plate forming device 5 of product is formed for carrying out treatment to mixed paper mill sludge, and squeeze drying device 6 for carrying out the sludge plate of hot-pressing drying to the sludge plate being molded, the feed end of the sludge plate forming device 5 is provided with head tank 7, set between mixing pit 4 and head tank 7 and carry material device, material device is carried by mixed paper mill sludge lifting in mixing pit 4 to head tank 7.
The pulping device 3 is centrifugal rotor drum, and sewage backflow system 8 is communicated between the sludge plate forming device 5 and preliminary sedimentation tank 1.
The sludge plate forming device 5 includes couch roll 9, conveyer 10, vaccum dewatering box 11, pressure roller 12, the couch roll 9 is located near the side of head tank 7, conveyer 10 is used to convey the paper mill sludge on couch roll 9, vaccum dewatering box 11 is located at the lower section of couch roll 9 for carrying out first dewater treatment to paper mill sludge, and the connection sewage backflow of vaccum dewatering box 11 system 8, pressure roller 12 carries out second dehydration to the paper mill sludge on conveyer 10, the surface of the pressure roller 12 sets fluted 13 in the axial direction, flexible cutting line 14 is set in the groove 13, conveyer belt on the conveyer 10 is the absorption band for adsorbing paper mill sludge.
The sludge plate squeezing drying device 6 includes the body 15 being vertically arranged, the heater 16 being arranged in body 15 and is arranged on the hydraulic cylinder 17 of the downside of heater 16, the heater 16 includes top board 18 and base plate 19 and the clad steel silk screen 20 being arranged between top board 18 and base plate 19, it is used to place the sludge plate after shaping between clad steel silk screen 20, top board 18 is used to heat with base plate 19.
Set in coil pass in the top board 18 and steel plate, be passed through in coil pass in high-temperature steam, the body 15 and be provided with multiple heaters 16 being stacked with.
By using above-mentioned technical proposal,By preliminary sedimentation tank 1,Storage pool 2,Pulping device 3,Mixing pit 4,Cooperation between sludge plate forming device 5 and sludge plate squeezing drying device 6,Make it possible to carry out recycling to paper mill sludge,Avoid secondary pollution of the paper mill sludge to environment,And the level of resources utilization can be improved,Avoid causing the wasting of resources,Make it possible to carry out first dewater treatment to paper mill sludge by setting vaccum dewatering box 11,By setting pressure roller 12 second dehydration treatment can be carried out to paper mill sludge,Make it possible to that paper mill sludge is further dried,By setting sewage backflow system 8,Make it possible to be collected the sewage after dehydration and be back to preliminary sedimentation tank 1,So that the paper mill sludge remained after dehydration carries out flocculation sediment and is recycled again,By setting elastic cutting line 14,Make it possible to facilitate sludge plate of the workman to producing to cut off,So that improve work task efficiency,Make it possible to repeatedly be laminated paper mill sludge by the setting for adsorbing band,So that sludge plate reaches predetermined thickness,The treatment of drying device 6 is squeezed by sludge plate,The drying efficiency of sludge plate can be improved,And it is capable of the hardness and toughness of further sludge plate by squeezing,Moisture of the sludge plate in drying process can be improved by the setting of clad steel silk screen 20 to distribute,By top board 18 and base plate 19 for coil pipe is set,Make it possible to be heated by steam and can effectively improved the thermally equivalent efficiency of top board 18 and base plate 19.
It is a kind ofPaper mill sludge resource utilization method, the paper mill sludge utilizes bag following steps：
1）Preliminary sedimentation tank 1 is passed through to papermaking wastewater carries out flocculation sediment and separate to form paper mill sludge；
2）Post-depositional paper mill sludge is pumped into storage pool 2 by transmitting pump carries out storage utilization；
3）Blend the paper mill sludge in storage pool 2 by centrifugal rotor drum, and be put into chemical fibre lower margin cottons in centrifugal rotor drum simultaneously carries out being mixed to form sludge material with paper mill sludge；
4）Mixed sludge material is stored in mixing pit 4, the lifting of sludge material is put into head tank 7 by carrying material device then；
5）Sludge material in head tank 7 is transferred on conveyer 10 by couch roll 9, absorption band on conveyer 10 adsorbs sludge material and carries out dewater treatment by vaccum dewatering box 11, and then the conveyer 10 with sludge material carries out second dehydration treatment by pressure roller 12 and to sludge material；
6）The sludge bed of material is stacked to by certain thickness by suction-operated in rotation process by the absorption band of conveyer 10 and forms sludge plate, cutoff process is carried out to sludge plate by the elastic cutting line 14 on pressure roller 12；
7）Sludge plate after shaping is placed between clad steel silk screen 20, and high-temperature steam is passed through between top board 18 and base plate 19, and by hydraulic cylinder 17 sludge plate squeezed simultaneously so that the moisture that sludge board memory is stayed carries out further evaporation process；
8）When the mass dryness fraction in sludge plate reaches 85%-90%, sludge plate is taken out, press then is carried out to dried sludge plate and rolls treatment；
9）Sludge plate after to rolling carries out the cutting of specification, forms last product.
By using above-mentioned technical proposal, by using chemical fibre lower margin cottons, the charge effect on chemical fibre surface can be utilized, by sludge absorption on chemical fibre surface, so as to be that scattered mud granule gathers shaping, simultaneously because chemical fibre is compared has certain length with mud granule, sludge plate forming can be made has preferable toughness and folding strength after drying, simultaneously because containing chemical components such as thermoplasticity PAE resin, water repellent agents in the pulp-water of paper mill sludge, therefore sludge plate assigns the preferable intensity of sludge plate and water resistance by rich after hot pressing, drying；
After dry sludge plate takes out from press, due to there is the impurity such as silt particle in plate face, influence decoration, the use of packaging by the extremely hard steel rider in surface, it is necessary to carry out rolling treatment, its effect：One is to pulverize sand grains to be dropped from plate face, and two can be that the impurity such as sand grains are imbedded into sludge plate so that plate face show it is smooth, so as to ensure to be not when in use to destroy covering.
By the sludge plate for rolling, then cut to certain specification by fixed width in length and breadth, becoming can be with the packaging of export trade, ornament materials.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1.It is a kind ofPaper mill sludge resource utilization system, it is characterised in that：It includes the preliminary sedimentation tank for Sewage, for the storage pool to the paper mill sludge storage after precipitation, for the pulping device mixed with other raw materials to paper mill sludge, for the paper mill sludge after to blending store the mixing pit of mixing, the sludge plate forming device of product is formed for carrying out treatment to mixed paper mill sludge, and squeeze drying device for carrying out the sludge plate of hot-pressing drying to the sludge plate being molded, the feed end of the sludge plate forming device is provided with head tank, set between mixing pit and head tank and carry material device, material device is carried by mixed paper mill sludge lifting in mixing pit to head tank.
2. a kind of paper mill sludge resource utilization system according to claim 1, it is characterised in that：The pulping device is centrifugal rotor drum.
3. a kind of paper mill sludge resource utilization system according to claim 1, it is characterised in that：Sewage backflow system is communicated between the sludge plate forming device and preliminary sedimentation tank.
4. a kind of paper mill sludge resource utilization system according to claim 1, it is characterised in that：The sludge plate forming device includes couch roll, conveyer, vaccum dewatering box, pressure roller, the couch roll is located near the side of head tank, conveyer is used to convey the paper mill sludge on couch roll, vaccum dewatering box is located at couch roll lower section for carrying out first dewater treatment to paper mill sludge, and vaccum dewatering box connects sewage backflow system, pressure roller carries out second dehydration to the paper mill sludge on conveyer.
5. a kind of paper mill sludge resource utilization system according to claim 4, it is characterised in that：The surface of the pressure roller sets fluted in the axial direction, and flexible cutting line is set in the groove.
6. a kind of paper mill sludge resource utilization system according to claim 4, it is characterised in that：Conveyer belt on the conveyer is the absorption band for adsorbing paper mill sludge.
7. a kind of paper mill sludge resource utilization system according to claim 1, it is characterised in that：The sludge plate squeezing drying device includes the body being vertically arranged, the heater being arranged in body and the hydraulic cylinder being arranged on the downside of heater, the heater includes top board and base plate and the clad steel silk screen being arranged between top board and base plate, it is used to place the sludge plate after shaping between clad steel silk screen, top board is used to heat with base plate.
8. a kind of paper mill sludge resource utilization system according to claim 7, it is characterised in that：Set in coil pass in the top board and steel plate, high-temperature steam is passed through in coil pass.
9. a kind of paper mill sludge resource utilization system according to claim 7, it is characterised in that：Multiple heaters being stacked with are provided with the body.
10.It is a kind ofPaper mill sludge resource utilization method, it is characterised in that：The paper mill sludge utilizes bag following steps：
1）Preliminary sedimentation tank is passed through to papermaking wastewater carries out flocculation sediment and separate to form paper mill sludge；
2）Post-depositional paper mill sludge is pumped into storage pool by transmitting pump carries out storage utilization；
3）Blend the paper mill sludge in storage pool by centrifugal rotor drum, and be put into chemical fibre lower margin cottons in centrifugal rotor drum simultaneously carries out being mixed to form sludge material with paper mill sludge；
4）Mixed sludge material is stored in mixing pit, the lifting of sludge material is put into head tank by carrying material device then；
5）Sludge material in head tank is transferred on conveyer by couch roll, and the absorption band absorption sludge material on conveyer simultaneously carries out dewater treatment by vaccum dewatering box, and the conveyer then with sludge material carries out second dehydration treatment by pressure roller and to sludge material；
6）The sludge bed of material is stacked to by certain thickness by suction-operated in rotation process by the absorption band of conveyer and forms sludge plate, cutoff process is carried out to sludge plate by the elastic cutting line on pressure roller；
7）Sludge plate after shaping is placed between clad steel silk screen, and high-temperature steam is passed through between top board and base plate, and by hydraulic cylinder sludge plate squeezed simultaneously so that the moisture that sludge board memory is stayed carries out further evaporation process；
8）When the mass dryness fraction in sludge plate reaches 85%-90%, sludge plate is taken out, press then is carried out to dried sludge plate and rolls treatment；
9）Sludge plate after to rolling carries out the cutting of specification, forms last product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008115.6A CN106927654A (en) | 2015-12-29 | 2015-12-29 | A kind of paper mill sludge resource utilization system and its method |
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| CN201511008115.6A CN106927654A (en) | 2015-12-29 | 2015-12-29 | A kind of paper mill sludge resource utilization system and its method |
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| CN106927654A true CN106927654A (en) | 2017-07-07 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354801A (en) * | 2017-08-30 | 2017-11-17 | 建宁县恒源节能环保科技有限公司 | The manufacture craft of environment-friendly type carton gasket plate |
| CN107881843A (en) * | 2017-10-18 | 2018-04-06 | 建宁县恒源节能环保科技有限公司 | The manufacture craft of cardboard is made using paper mill sludge |
| CN107892461A (en) * | 2017-11-09 | 2018-04-10 | 韩文雅 | A kind of cutting mechanism in mud dehydration plant |
| CN107974872A (en) * | 2017-10-18 | 2018-05-01 | 建宁县恒源节能环保科技有限公司 | The manufacture craft of environment-friendly paperboard |
| CN108675614A (en) * | 2018-06-14 | 2018-10-19 | 广州市浩逸环保科技有限公司 | A kind of sludge environment-friendly furnace drying method |
| CN117285216A (en) * | 2023-11-24 | 2023-12-26 | 四川赛福伟业石油技术服务有限公司 | Harmless treatment equipment and method for petroleum exploitation sludge |
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| CN107354801A (en) * | 2017-08-30 | 2017-11-17 | 建宁县恒源节能环保科技有限公司 | The manufacture craft of environment-friendly type carton gasket plate |
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| CN107892461A (en) * | 2017-11-09 | 2018-04-10 | 韩文雅 | A kind of cutting mechanism in mud dehydration plant |
| CN108675614A (en) * | 2018-06-14 | 2018-10-19 | 广州市浩逸环保科技有限公司 | A kind of sludge environment-friendly furnace drying method |
| CN117285216A (en) * | 2023-11-24 | 2023-12-26 | 四川赛福伟业石油技术服务有限公司 | Harmless treatment equipment and method for petroleum exploitation sludge |
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